Rules for ZIP Code 94303
Palo Alto, CA · Santa Clara County
ZIP 94303 is governed by the city of East Palo Alto, CA. We do not hold its code yet, and Santa Clara County ordinances do not apply inside its limits.
ZIP code 94303 lies in the city of East Palo Alto, CA, which holds about 61% of the ZIP's residents and writes its own local code. We have not added East Palo Alto's ordinances yet, so nothing is shown below: Santa Clara County rules govern only unincorporated land and do not reach inside East Palo Alto.
ZIP codes do not follow city lines. 94303 also covers:
- city of Palo Alto~30% of residents
Shares are estimates from 2020 Census geography. If your address is in one of these, its rules apply instead.
Each topic below links to the full ordinance breakdown with specific code sections, fine amounts, and answers to common questions. The data is sourced from the official municipal code and verified by our editorial team.
East Palo Alto is not covered yet
The city of East Palo Alto writes its own code; the county's rules do not apply inside it.Request East Palo Alto coverage →
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